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How to create a density plot in matplotlib?

...with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the function covariance_factor of the gaussian_kde class. First, here is what you get without changing that function: However, if I use the following code: import...
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File Upload without Form

... using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'. ...
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How to base64 encode image in linux bash / shell

... You need to use cat to get the contents of the file named 'DSC_0251.JPG', rather than the filename itself. test="$(cat DSC_0251.JPG | base64)" However, base64 can read from the file itself: test=$( base64 DSC_0251.JPG ) ...
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How to get parameters from a URL string?

...ery'], $query); echo $query['email']; If you want to get the $url dynamically with PHP, take a look at this question: Get the full URL in PHP share | improve this answer | ...
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How to extract the n-th elements from a list of tuples?

... @Wayne Werner: Yep. This stuff was all just passive knowledge (I don't often use it) - but it's good to be reminded now and then so you know where / what to look for... – Daren Thomas Jul 22 '10 at 13:14 ...
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C# 4.0 optional out/ref arguments

Does C# 4.0 allow optional out or ref arguments? 9 Answers 9 ...
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How do I tidy up an HTML file's indentation in VI?

How do I fix the indentation of his huge html files which was all messed up? 11 Answers ...
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Clang vs GCC for my Linux Development project

...inux-gnu/4.3.4/include/g++-v4/ostream:112: note: candidates are: std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>& (*)(std::basic_ostream<_CharT, _Traits>&)) [with _CharT = char, _Traits...
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How to handle both a single item and an array for the same property using JSON.net

....Categories)); Console.WriteLine(); } } } And finally, here is the output of the above: email: john.doe@sendgrid.com timestamp: 1337966815 event: open categories: newuser, transactional email: jane.doe@sendgrid.com timestamp: 1337966815 event: open categories: olduser F...
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Why aren't variables declared in “try” in scope in “catch” or “finally”?

...Reader sr, [1] class [mscorlib]System.Exception ex) IL_0000: ldnull IL_0001: stloc.0 .try { .try { IL_0002: ldsfld string UsingTest.Class1::path IL_0007: newobj instance void [mscorlib]System.IO.StreamReader::.cto...